Home / 91,765,287.78-126,639,438.48-49,947,331.74

Finding the Fourth Proportional to 91,765,287.78, 126,639,438.48 and 49,947,331.74

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Solution

The fourth proportional to 91,765,287.78, 126,639,438.48 and 49,947,331.74 is: 68,929,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,765,287.78 : 126,639,438.48 = 49,947,331.74 : x
  2. Step 2: Convert to fraction form
    91,765,287.78/126,639,438.48 = 49,947,331.74/x
  3. Step 3: Cross multiply
    91,765,287.78x = 126,639,438.48 × 49,947,331.74
  4. Step 4: Simplify right side
    91,765,287.78x = 6,325,302,045,127,882
  5. Step 5: Solve for x
    x = 6,325,302,045,127,882/91,765,287.78
  6. Step 6: Final answer
    x = 68,929,136.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.